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Finding the Fourth Proportional to 25,086.40, 37,629.60 and 19,254.40

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Solution

The fourth proportional to 25,086.40, 37,629.60 and 19,254.40 is: 28,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,086.40 : 37,629.60 = 19,254.40 : x
  2. Step 2: Convert to fraction form
    25,086.40/37,629.60 = 19,254.40/x
  3. Step 3: Cross multiply
    25,086.40x = 37,629.60 × 19,254.40
  4. Step 4: Simplify right side
    25,086.40x = 724,535,370.24
  5. Step 5: Solve for x
    x = 724,535,370.24/25,086.40
  6. Step 6: Final answer
    x = 28,881.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.